Description
The part number TRICON 4355X (commonly designated as the TCM 4355X) refers to an advanced communication module manufactured by Triconex (Schneider Electric).
Product Overview
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Manufacturer: Triconex (Schneider Electric)
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Part Number / Model: 4355X (Tricon Communication Module – TCM)
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Component Type: High-Performance Network and Serial Communication Interface Module
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Platform: Tricon Triple-Modular Redundant (TMR) Safety Instrumented System (SIS)
Key Specifications & Features
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Network Interfaces:
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2 Copper Ports: 100Base-TX / 1000Base-T Ethernet connections.
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2 SFP Slots: Support for Small Form-factor Pluggable devices allowing 100Base-FX or 1000Base-X fiber optic media integration.
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Serial Interfaces:
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2 galvanically isolated RS-232 / RS-485 ports (DB-9 connectors) supporting data speeds up to 115.2 Kbps per port.
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1 dedicated isolated RS-232 diagnostic port.
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Supported Protocols: Natively handles TriStation, Modbus (Client, Server, TCP/IP), TSAA (with IP Multicast support), Peer-to-Peer, Triconex Time Synchronization, External HART DTM, HART-IP, and SNTP.
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TMR Integration: Designed to slot seamlessly into the fault-tolerant, triple-modular redundant Tricon architecture, ensuring continuous, secure data exchange without compromising safety loop performance.
Industrial Deployment
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Applications: Widely utilized in high-consequence industries—such as oil and gas processing, petrochemical plants, and power generation—to safely link critical safety controllers (Emergency Shutdown Systems [ESD], Fire and Gas [F&G], and High Integrity Pressure Protection Systems [HIPPS]) to upper-level supervisory systems, DCS, and plant historians.
4355X
TRICON 4355X
Product Overview
Technical Specifications
| Item | Parameter |
|---|---|
| Part Number | TRICON 4355X |
| Module Type | Tricon Communication Module (TCM) |
| Manufacturer | Triconex, Schneider Electric |
| Applicable Platform | Tricon TMR Safety Instrumented System (v9 / v10 / v11) |
| Ethernet Ports | 2 × 10/100 Mbps RJ45 (NET1, NET2) |
| Serial Interface | 1 × Isolated RS232 DB9 Debug/ECOM Port |
| Supported Protocols | Modbus TCP, Modbus RTU, TriStation, Peer-to-Peer Communication, SNTP Time Synchronization |
| Architecture | Compatible with TMR triple redundant safety rack |
| Hot Swap Support | Yes |
| Power Supply | Powered by rack backplane |
| Operating Temperature | -20℃ ~ +70℃ |
| Ambient Humidity | 5%–95% non-condensing |
| Protection Class | IP20 (cabinet internal installation) |
| Safety Compliance | Suitable for SIL3 safety loop architecture (IEC 61508) |
| Spare Part Status | Original production discontinued; new surplus and refurbished modules available |
Key Features
- Dual Ethernet ports support redundant network configuration to improve communication continuity
- Rich protocol compatibility for seamless interconnection with mainstream DCS and monitoring systems
- Supports TriStation online download, real-time monitoring and sequence of events (SOE) data collection
- Hot-swappable design; module replacement does not shut down the running safety control rack
- Front panel LED indicators clearly display network link status, operation status and fault alarms
- Galvanic isolation circuit effectively suppresses external electromagnetic interference and avoids communication disturbance
- Enables peer-to-peer data exchange between multiple Tricon racks for distributed safety control
- Built-in continuous self-diagnosis function to quickly locate communication channel failures
- Different hardware revisions cannot be directly interchanged; full part number verification is required before replacement
- Rugged industrial mechanical structure with anti-vibration capability for long-term unattended operation
